public static Stream OpenFileForWriting(string uri)
{
string fileName = Path.GetFileName(uri);
Task <StorageFile> task1 = WindowsRuntimeSystemExtensions.AsTask <StorageFile>(FileHelper.GetFolderForPathOrURI(uri).CreateFileAsync(fileName, CreationCollisionOption.ReplaceExisting));
task1.Wait();
if (task1.Status != TaskStatus.RanToCompletion)
{
throw new Exception("Failed to open the file");
}
Task <IRandomAccessStream> task2 = WindowsRuntimeSystemExtensions.AsTask <IRandomAccessStream>(task1.Result.OpenAsync(FileAccessMode.ReadWrite));
task2.Wait();
if (task2.Status != TaskStatus.RanToCompletion)
{
throw new Exception("Failed to open the file");
}
else
{
return(WindowsRuntimeStreamExtensions.AsStreamForWrite((IOutputStream)task2.Result));
}
}
public static Stream OpenFileForReading(string uri)
{
return(FileHelper.OpenFileForReading(FileHelper.GetFileForPathOrURI(uri)));
}